Adding-machine.



No. 669,!68. Patented Mar. 5, l90l.

A. HUGH.

ADDJNG MACHINE.

ApplicQtion filed Jam. 9, 1899.-

5 Sheets-Sheot (No Model.)

In: mm! PETElS coy. Pwnrounn. wumnswu, n. c

Patented Mar. 5, l90l.

A. HUGH.

ADDING MACHINE.

'Applicafiion flleq Ian. 9, 1509.) (No Model.) 5 Sheets-6M6! 2.

1 "w v I No. 669,!68. Patented Mar. 5, l90l A. HUGH.

ADDING IAOl-IINE.

(Appliention Med Jul. 9, 1809.) (No Model.) 5 8hooh8hoet 3.

. 1n: humus rnzn co, moiuumoq wmimmu B, c.

No. 669,l68. Patented Man-5, l90l. A. HOCH.

ADDING MACHINE.

(A pnmiou and Jan. 9, 1899.) (No Model.) 5 Sheets--Shoot 4.

No. 669,I68. Patented 'Mar. 5

A. HUGH.

ADDING IACHINE.

(Application filed Inn. 9, 189 9.)

(No Model.)

NITED STATES PATENT Orrioat ADAM HOCI'I, OF ALAMEDA, CALIFORNIA.

ADDING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 669,168, dated March 5, 1901.

Application filed January 9, 1899.

scription which are operated through the medium of finger-keys and to print figures in numerical order in columns upon a strip of paper and also print the sum-total at the bottom of the column.

The principal novel features in the present machine comprise a type-carrying bar or arm combining in its structure and functions both a printing device to imprint in required numerical order on a strip of paper the ten digits in rows and columns to represent difierent amounts and a rack or prime mover to actuate an adding device by which is computed and recorded the sum of the several rows and columns of figures. In performing these functions the printing-arm is operated with different rectilinear and vibratory movements prod need by two sets of independently-actingfinger-keys and connecting mechanism, by one of which the printing-arm is set to the extreme left of the line or row of figures to begin at the highest order of numbers in the line to be added, and by the other set of keys the print ing-arm is operated to print the figures and also to record and add the same to the sum recorded by the adding device of the machine. The first-mentioned set of keys, herein designated as the shifting-keys, controls the position of the printing-arm with reference to the number of numerical orders occupied by the figures of the line to be printed and brings the printing-arm to required place by a trans verse movement from right to left. The mechanism elfecting this shifting movement brings the arm to its starting-point with a single throw or movement and locks the arm against a counter movement by the successive depression and release of one key. By the second set of keys, herein designated as the adding and printing keys, the printingarm is caused to engage and actuate the adding device while being set to position to print and afterward is caused to disengage itself Serial No. 701,665. (No model.)

from the adding device and print the proper figure in row and column on the paper, and, finally, to return to the starting-point for the next adding and printing motions.

The improvements include also novel means of producing each adding and printing opera tion and the feeding or spacing of the figures from left to right by the stroke of one key.

The improvements include also a novel means of printing the sum-total directly from the adding device and means whereby the figures composing the sum can be printed in a different colonfrorn the figures in the columns.

The improvements include also a su m-totalprinting device actuated by an independent key to imprint the result on the paper.

The improvements include also novel key mechanism and its combination with the adding and printing devices whereby the two op erations of printing a figure on the paper and of adding it to the sum already recorded are produced at each time of printing a figure by the successive depression and release of a single key.

The improvementsinclude also the combination of interlocking mechanism with the two sets of keys beforementioned whereby all the keys of one set are locked or thrown out of action when the keys of the other set are in use and whereby also no one figure can be added unless it is printed and no'figure can be printed without being added to the sum already recorded.

The improvements embrace also certain novel parts and combinations of parts producing a complete, simple, and durable machine, operating to give a perfectly accurate record of figures in rows and columns upon a strip of paper and the sum-total or result at the bottom of the columns, the aim and object in view being to reduce the number of working parts, to produce the various movements with a small number of keys, to secure accuracy and ease of operation, and to supply an adding-machine for commercial use at a moderate cost.

The following description explains at length the nature of my said improvements and the manner in which I proceed to apply and carry out the same, reference being had therein to the accompanying drawings, forming part thereof.

In the drawings, Figure 1 is a plan of an adding-machine embodying the said improvements. Fig. 2 is a side elevation, principally in longitudinal section, on the line a: m, Fig. 1, showing the printing-arm in its lowest position disengaged from the adding device and the shifting mechanism, the printing and adding keys and some of the connecting parts being omitted. Fig. 3 is a longitudinal section at the line-y y, Fig. 1, showing the printing-arm set toimprint the figure 8 and the position of the operating part at that time. The adding device and some of the actuating parts are omitted from this view. Fig. et is a longitudinal sectional view on the line y of Fig. 1, showing more particularly the sumtotal-printing mechanism with the parts in two positions, the full lines representing the printing-wheels and theircarrierin a position of rest and the dotted lines indicating. the same parts in position to imprint the sumtotalon the paperstrip. Fig. 5 is a longitudinal section on the line a; a, Fig. 1, showing the printing-arm in the lowest position at rest before engaging the adding mechanism. This view represents more particularly the general relation and arrangement of the spacing mechanism and interlocking means. Fig. 6 is a section on the line a; at of Fig. 5, some parts being partly broken away. Fig. 7 is a horizontal section showing details of the printingarm shifting and feeding mechanism. Fig. Sis a side view in detail, on an enlarged scale, of the adding mechanism. Fig. 5) is aside view, enlarged, of one ofthe adding and total-printing wheels. Fig. 10 is a front view of thetotal-printing wheels. Fig. 11 is a side view in detail of the lower part of the 'ing to add and print a row of figures.

printing-arm, the parts of the mechanism actuating it, and the locking means by which it is held in position after being elevated. Fig. 12 is an elevation taken from the lefthand side of Fig. 11.

X X indicate the parts of a case inclosing the mechanisms.

A A are the keys that set the printingarm A from units place toward the left to the required column or place of numbers in start- B B are the keys that operate the printing-arm to actuate the adding and printing devices and the feeding mechanism. (3 is the total-printing key. With these three sets of keys all the operations of the machine are performed.

D is an impression-roller stationary as to position and having only a step-by-step rotary motion at intervals to feed the recordstrip.

E' E are rollers from which webs of paper for an original and a duplicate record-strip I. F are supplied to the roller D, from one of which an ink or carbon ribbon F is introduced between the paper strips when a (luplicate record is to be furnished by the machine.

The journalsf j of the impression-roller have bearings in the sides X of the case, and

one of them carries a ratchet-tooth wheel D that is turned one tooth at a time by a pivoted dog D on the end of a reciprocating rod D, the movement of which is taken from one of the levers or parts that actuate the adding devices, as described hereinafter.

The part A, designated as the printing-arm, is a fiat and relatively narrow bar of curved shape having on the outer or convex edge a series of type-figures (t in spaced order one above the other, beginning with a O at the top and including the figure 9 at the bottom. On the opposite or concave edge of the arm is a row of spur-teeth spaced to correspond with the digits on the front edge of the arm. The function of this toothed rack ta is to engage with and turn the wheels of the adding device, which is located for that purpose in front of the roller D, the space between the two parts being sufficiently wide to allow room for the oscillating motions and the up-and-down movements of the arm A. By its first-mentioned motion forward and backward this part A is first set into engagement with the gear-teeth of the adding mechanism, and by the return or backward throw the type-carrying side of the part is brought against the record strip presented on the roller D, and that one of the typefigures which is situated at the time in position to make contact with the curved surface of the roller is imprinted on the paper by that movement of the arm. The figures on the arm A are set in position singly and one at a time in any required numerical order by a simple vertical movement or upward throw of the arm, the extent of which movement determines the figure that will be printed in the following oscillating motion of the arm. The extent of the upward throw called for in the presentarrangement of the type-figures on the arm is greatest for the digit 9 and from that regularly decreases in length down to the 0, at which point the arm is oscillated without anypreceding vertical set when a cipher is to be printed. in the upward throw preceding a contact with the paper a forward movement of the arm A brings the rack-teeth into mesh with the gear-teeth of that one of the addingwheels with which the arm is alined, and the same movement that sets the arm in position to print also rotates that one of the addingwheels with which the arm is alined. Thus the upward movement to bring the proper figures in position to be imprinted rotates the addingwheel, and by a greater or less extent of movement, correspondii'ig to the length of the reciprocation of the rack, the amount of that figure .is added to the sum recorded on the adding mechanism. The rack so engaged with the adding device during the upward throw is afterward moved out of working contact with the wheel by the same forward oscillation of thearm A that brings the type into contact with the paper, and following that movement the arm is returned forward again to clear the paper and set the arm in position midway between the adding device and the roller D or so as to stand clear of both parts. A final drop or movement of the arm brings it to its lowest position and starting-point, where it rises again in the following upward throw, by which itis set to print the next figure. These movements of the arm A to add and print figure after figure are all produced from the set of ten finger-keys B, one for each figure or character on the arm A,through the medium of mechanism connecting each key with the printing-arm A in such a manner that the successive movements of the arm to throw the rack into engagement with the adding mechanism, to move the arm upward to bring itin contact with the paper, and, finally, to disengage the arm and return it toits lowest posit-ion are all effected by the single depression and release of a key. The arm A is constructed also to operate these movements in any one of eight or more positions in the order of numbers, beginning with the number occupying the highest place in the row. Starting in each time of the operation to print a row of figures, the arm A is set by a single throw or movement from the extreme right of the line toward the highest number in the row by means of the shifting-keys A and their connected mechanisms, which control and determine the starting-point of the printing-arm in working from left to right again. The feeding back of the arm following each transverse movement is performed by spacing mechanism actuated from the same keys. Thus it will be seen that the construction of the machine involves two principal and separate sets of mechanisms, one consisting of means for setting the printing-arm to start from the left-hand end of the row and the other the means that operates the arm to printgiven figuresin rows and to add together and give the sum of the figures so printed.

The construction of the printing-arm Aand its shifting mechanism will be more clearly understood by referring to Figs. 1, 2, 6, and 7 of the drawings.

A stationary rod A fixed across the space at the rear end of the case, forms a guide on which the arm A is mounted for transverse sliding movement and also constitutes the center of the oscillating or forward-and-backward movements of the arm.

A is a short rod suspended from the guide A by hangers that are fitted to slide on the guide, one of such hangers consisting of an arm a and the other of two links a a between which the printing-arm A is confined. The rod A fixed in the hangers, passes through the arm A, the lower part of the arm being slotted for that purpose, as seen in Fig. 2.

A is a bell-crank pivoted at a-"and having the end of its longer member attached to the hub of the hanger by a pin a in the huband a slot in the end of the lever.

A is a plate movable on the center a in a horizontal plane, and A is a rod attached to the shorter member of the plate at a and connecting that part with a rocking frame located in the front part of the case and composed of the cross-rail (1 and the side pieces A A The rail extends across the front directly under the key-levers A, and the sides A are pivoted at a". The point of attachment of the connecting-rod A is located at 61 below the cent-er of movement at, so that the shorter end of the vibrating plate A is moved back and its longer end is thrown forward as the front rail of the rocking frame is depressed by pressing down one of the keys A. At such time of movement a pin 01 on the under side of the vibrating plate engages the shorter member of the hell-crank, thereby drawing it forward and throwing over the longer member from right to left of the machine. This movement taking place, as indicated in Fig. 7 by the dotted are, shifts the arm A along the stationary guide A, and thus sets the arm to the left a greater or less distance,according to the extent of movement of the bell-crank. The length of this lateral movement of the arm A, 'whereby it is set to one, two, or more places of numbers preparatory to the feeding-back operation to space the figures, is governed and determined by the length of contact continuing between the key-leverand the front rail 00 of the rocking frame in the downstroke of the key. To this end the front rail is set at an inclination upward across the case from right to left, (shown in dotted lines in Fig. 6, which is a transverse sectional view of the machine looking from the rear end,) so that the vertical distance between thetop edge of the rail and the bottom edges of the key-levers A above is greatest under the firstkeyon the rightofthekeyboard and is least under the key at the extreme left, and the resulting movements of the rocking frame will varyin length with the particular key selected and depressed by the operator. The machine herein described being constructed to add and print as high as the tenmillions place of numbers in a single row, there are eight shifting-keys in the set A, one for each numerical order, and the arm A is brought to the required position, beginning at the highest number in the row, by a single stroke of the proper key. Before these lateral movements take place the arm A is always set to stand clear of the adding device in front of it and the impression-roller D behind it by a short oscillating or rocking motion of the arm on the fixed guide A produced in the upstroke of the shifting-key when the finger is removed. These parts, which go to form the oscillating mechanism, consist of a rocking plate A, at tached to the front bar and movable on the center a, and the rod B and connection between the rocking plate and the arm A, whereby the movement of the rocking frame sets the arm A into gear with the adding device after it is shifted laterally to the proper column. These connections consist of the following parts: B is a rod carried in the upper end of the upright arms Z1 6 that are pivoted at the lower ends I) to the sides of the case and having limited swinging movement in a vertical are on that center. B is a connecting rod or bar attached to the swinging rod A of the printing-arm A and at the front end attached to the rod B At the upper rear corner of the plate A the rod B extends through a right-angle slot (L23, the perpendicular member of which allows the plate to rock without moving the rod, while the shorter horizontal member of the slot permits the rod B to reciprocate without affecting the rockerplate. The perpendicular member of the slot is slightly inclined, as shown in Fig. 2, to produce a short throw of the rod P in the final movement of the shifting-key, and thereby set the rack of the printing-awn into mesh with the gear of the adding-wheel before the perpendicular throw of the arm A takes place. The length of the shifting movement is controlled by a separate stop device connected to each shifting-key, consisting of a sliding rod H, connected to a short elbow A on the key-lever and playing at the rear end through holes in a stationary guide H fixed across the machine-frame in front of the guide-rod A. At the back of the guide 11 a sliding stop plate H", with projections 7L5 on the front edge, is attached by a pin-a-ndeslot connection h to the long arm of the bell-crank A so as to move with that part. The projections h5 are spaced at intervals apart to correspond with the number of columns or places of number to which the printing-arm may be set and in such position also that when the stop H of a given key is projected through the guide H by the depression of that key the end of the rod will engage that one of the projections which lies immediately to the right and will arrest the throw of the bell-crank when that projection strikes the end of the stop-rod. The leading edges of the projections are made straight to strike the ends of the stop'ra-ils, but the opposite edges areinclined, so as to ride against and press back the stop-rod in the movement of the slide to the right. After the pri11tingarm is set to position in this manner, to begin at the proper column of numbers the type-figures corresponding to the figure to be added is brought into line with the paper by the per pendicular movement of theprinting-arm rising from its lowest position, as shown in Fig. 2. At the end of that setting movement the arm turning on its guide-rod A is thrown forward into engagement with the gear-teeth of the adding device, and then in its upward throw the arm rotates the wheel with which its rack is in mesh with a length of movement proportionate to the length of the upward throw of the rack. When the arm A comes to rest ready to make contact with the paper, that one of the type-figures on the arm which is left in position by that movement to be imprinted on the paper has been added to the sum already computed in the adding mechanism, and the sum-total is read from the number-bearing wheels of that part of the machine.

The following mechanism connecting the printing-arm A with the individual keys of the second series B in the keyboard produces all the above motions of the printing-arm by the stroke of any selected one of the keys. The same key in its upstroke operates the step-by-step mechanism in the movement of the printing-arm from left to right to space for the next figure.

K K K are three parallel bars joined at the rear end of the machine by a cross baror rod K and having eyes at the front ends fitted to turn on a stationary rod K that forms the center of vibration of the frame. K is an inclined rod set higher at one end than at the other and secured in the bars of this frame, so as to stand in a slanting position across the machine.

L L are oscillating cam-plates, one foreach key, each having a rod L for a common center, on which they areindependently movable in vertical arcs with a length of movement sufficient to engage with the inclined bar K when brought by a forward movement into an upright position and to be disengaged from it by a contrary niovelnent. There is one cam L to each key of the second set,and each cam is connected to its individual key by a link M, attached to the cam at m and to the end of the key-lever at m so that pressure upon the key throws the cam forward against the inclined bar K". A helical spring m on the rod L assists in bringing the cam-plate back to place when thekey is released. The contact of any one cam-plate with thebarK" in the forward throw lifts the frame K K K", of which the bar is a part, and by throwing up the rear end of that part raises the printing-arm perpendicularly a greater or less distance, according to the length of movement of the frame. This upward throw of the frame is produced by the incline L on the front edge of the cam-plate acting against the inclined bar, and the length of throw produced by the stroke of one key over thenext is varied by the angular position of the bar. The incline L terminates in a concentric slot or recess L into which the crossbar is seated at the end of the forward throw.

L is a guard-hook with a rounded nose extending from the top of the cam-plate at an angle downward in front of the incline L, with the nose in line with the cross-bar.

Each cam-plate is provided with a guardhook, with the exception of the cam of the first or cipher key on the left of the line, where it is not needed, because the cipher is printed without a vertical set of the printing-arm and the inclined bar has no movement when that key is pressed. This hook performs the two functions of returning the frame to its lowest position after the printing operation, which it does by striking against and forcing down the inclined bar as the cam-plate is drawn back by the spring, and of preventing a second cam-plate from engaging the inclined bar when that bar is already seated in the slot of another cam-plate. All the cams play in slots in a stationary comb or guideplate h extending across the machine-frame under the rocking frame K K K. In addition to these functions the cams L form the principal members of the mechanism that brings the printing-arm in contact with the paper to give the impression, the construction and operation of which will be understood from Figs. 3, 5, and 6.

The rod B extending across the machine above the cam-shaft L and to which the connecting-rod B is attached, is situated directly in frontof the cams L, just below the bottom line of the inclines L and in position to be struck by the front edge of the cam-plate and carried forward by that part in the downward stroke of thekey. This rod being common to all the cam-plates it will be seen that in the forward swing of any one of the cams the printing-arm is thrown back against the impression-roller, because the rod B by that contact with the cam-plate will be carried forward immediately after the cam has elevated the vibrating frame K K K. The oscillating movement of the printing-arm then taking place on the guide-rod A is produced by the downstroke of the key.' From these same swinging parts B b the step-by-step movements of the printing-arm are produced from left to right to space the figures in the same horizontal row through the following means: A dog P, pivoted at p to the upright arm 12 of the swinging rod B has a tooth on the free end engaging the segmental series of teeth 13 formed on the end of the short arm of the bell-crankleverA over which the point of the dog slips in the forward movement of the swinging rod B but in the backward movement its end engages one tooth of the series and throws the longer arm of the bellcrank to the right on the upstroke of the key. This feeding movement of the dog is produced by the action of the spring S when the pressure of the finger is taken 0% the key. This spring is attached to the rod l3 and at the rear end to the stationary block R at 8. On the side of the dog P is pivoted a latch S, having its free end projecting over the top face of the plate A and having a shoulder S on its lower edge adapted at the proper time to en gage a shoulder S on the plate A. The function of this latch is to prevent a key of the shifting set A from working while the keys of the other set E are being being operated.

S indicatesa pin projecting upwardly from the endot the short arm of the bell-crank leverA and as the latteris moved its last step by the dog P the said pin will engage the latch S and lift it out of engagement with the plate A. The plate A will now be free to more. The parts are so arranged that When the plate A and the bell-crank lever are in their normal positions the pin a will not be in engagement with the bell crank lever. The plate A can therefore have a slight movement without affecting the bellcrank lever. The plate A has a lateral projection, the upper face of which isinclined, as shown at 19 and the parts are so arranged that when in their normal positions alaterally-extending pin p on the dog P will be over the incline 13 During the movement of the plate A from its normal position until the pin a engages the bell-crank lever the inclined surface p will, by its engagement with the pin 19 lift the dog P out of engagement with the teeth 13 on the bell-crank, and the latter will then be free to move. The dog P will be held out of engagement with the teeth 19 until the plate A4 has passed from under it in its return movement, and the dog will then drop into engagement with the teeth.

After the printing-arm is set to position with reference to the paper, so as to bring the required figure in line with the impressionroller and before the printing movement takes place, the lifting-frame K K K is locked and held in a fixed position by a ratchet-bar R, attached to that frame, and a pivoted dog R carried on a stationary support R under the frame. Figs. 3 and 11 show the construction of this locking mechanism, Fig. 3 representing the position of the parts when the printing-arm is set to imprint the figure 8 and Fig. 11 representing the parts in detail, on a larger scale,with the printing-arm in its lowest position. The lifting-frame K K K and the printing-arm attached to it must be sustained at the end of the upward throw or the same would drop down again as soon as the printing-key was relieved of pressure and before the printing-arm would bedrawn back to clear the paper. At this moment the notched segment on the end of the arm R is engaged by the dog R at the end of the perpendicular throw of the printing-arm A, and thus the arm is supported in its elevated position until the backward oscillation is finished and the arm is brought away from the paper preparatory to dropping to its lowest position. The dog R is held against the segment by a spring R so as to engage the notches in the upward throw of the segment; but at the end of the downstroke of the key and as the pressure is removed the dog is forced back clear of the notches by the trig ger R and the stop R projecting from the side of the connecting-rod B these parts being so arranged that as the rod begins to move back the stop engaging a shoulder on the trigger will carry the dog R back with it, and thereby release the notched segment, which then drops and allows the lifting-frame of the printing-arm to drop with it. In such downward movement a shoulder R on the notched segment comes in contact with a stop-pin R projecting from the side of the trigger, and releasing that part in its descending movement the segment restores the dog l'CO R to position again to engage the notches of the segment. An additional locking device, composed of a pivoted latch R standing in upright position alongside of the segment, operates to hold down the lifting-frame and prevent it from rising until this lock is thrown off. A pin R on the side of the segment is set to engage a shoulder or recess R in the edge of the latch, and thus prevent the arm of the segment from rising. This latch is thrown off in the beginning of the backward throw of the connecting-rod B by the stop R on that rod striking an upright arm R, that projects from the latch. A spiral spring R on the pivot of the latch holds the same in upright position. These parts in their relative positions with the segment at rest are illustrated in the detail View, Fig. 11.

The arm A plays through a guide-frame A having spaced fingers a on the front bar corresponding in number with the wheels of the adding device, the office of which frame is to steady the printing-arm and keep it always in line with the proper wheel during the upstroke of the arm.

The adding device is constructed in the general plan of adding or computing devicesthat is to say, a number of adding-wheels mounted on a common axis are so connected one to the other by mechanism that in every complete revolution of one wheel the wheel of the next highest order of numbers is turned one tooth or space. i

The adding-wheels T T are mounted on a common barrel or hollow shaft T, to which they are individually connected l) a springbolt i carried by a solid shaft T turning within the barrel, and a recess t in the wheel, so that while each wheel is free to turn independently of the others the whole set is locked and made fast on the shaft when the spring-bolts are brought into the recesses of the wheels. This locking-point in each wheel being located in line with the place occupied by the cipher on the face of the wheel, it will be seen that by rotating the shaft until all the wheels are taken up and locked by the bolts 25 the wheels are set back to zero to begin at the starting-point for the n ext operation. For this purpose one end of the shaft T is carried through the case to the outside and is fitted with a milled head T for turning it.

The shaft T is connected by a slot and pin T" to the surrounding sleeve T and a spiral spring T surrounding the barrel and attached atone end to that part and at the other end to a fixed point t on the frame. Thus when the inner shaft T is rotated until the spring-bolts have engaged their respective wheels the spring react-ing as soon as the head T released by the operator, will bring back all the wheels to the starting-point again. This position of the wheels is controlled by the stop-disk T on the end of the tubular shaft, which is provided with one or more shoulders to engage a stop-pin T.

Each wheel T in completing every hal frevolution is caused to turn the adjacent wheel next highest; in order of numbers and set it forward one point or number by means of the following mechanism: T is a rocking lever pivoted at i and rocking in a vertical are on that point. T is a stationary frame fixed in an inclined position under the adding-wheels, furnishing support for a number of springbolts T on the upper part and a series of elbow -levers T below. Each of the lastnamed levers is pivoted at i to move in a vertical are and is provided with a yielding pawl T on its upper leg, to which it is attached at and on the end of the other member a tooth or dog The point of the pawl and the dog are so arranged with respect to its own adding-wheel and the adjacent adding-wheel that as the pin i on one wheel strikes the end 6 of the lever the opposite end is thrown back away from the push-bolt T of the next wheel. Each bolt T is provided with an inclined shoulder which ongages an inclined shoulder 2533 on the carrier T and when the parts are in their normal positions these shoulders will be held in en gagement by the contact of the upper end of the vertical arms of the elbow-levers T with the lower faces of the respective sliding bolts, as shown in full lines in Fig. 8. \Vhen, however, a pin i on a wheel strikes the end F ot a lever T the vertical arm of such lever will release the bolt sufficiently to disengage the inclined shoulders, and the spring P will project such bolt. Each bolt is also provided with a shoulder 25 on its lower face, which when the vertical arm is moved by the action of the pin i will drop behind such vertical arm, and in the outward movement of the bolt the vertical arm will be carried with it, and thereby cause the pawl T to move the adjacent adding-wheel one tooth. As this latter movement is being effected the outer end of the bolt T will pass between two teeth of such moving wheel and prevent the latter from moving more than the distance of one tooth. (See dotted lines in Fig. 8.) Each bolt and its spring are confined in a slotted carrier T fitted to swing in a limited are on the center 25 but otherwise stationary as to position, and the end of the bolt having a shoulder is fitted to engage with and be held back by that shoulder when thecarrier is pressed upward and held by the end of the upper member of the elbow-lever being set against the bolt from the under side. Thus the bolt is held within its carrier with its spring compressed as long as the longer member of the lever T stands in upright position. After its release and contact with the adding-wheel the bolt T is brought back to place and set ready for action by the return of the elbowlever to position, which is effected by contact and pressure of the curved lower end of the lever T with the shorter member of the elbo\v-lever. As the longer arm of the elbowlever moves back to position it will by its engagement with the shoulder 1 on the bolt carry the latter back suflicient to bring the inclined shoulders if and Winto engagement, and near the completion of its return movement it will again pass below the bolt and force it upward and rearward to its normal position. A connecting-rod T attached to the part '1 and extending forward,is attached at to the rocking frame of the shifting 'mechanism, so that the bolts are set back into their carriers through the movements of the shifting-keys. The rocking arm also actuates the lever B, that rotates the impression-roller, that part being attached at c X to the upper end of the arm. These parts are shown in working relation in Figs. 2 and ll.

Each adding-wheel is provided with a locking-pawl Z such pawl being in the form of an elbow-lever pivoted in the stationary frame T. The long arm of the lever is provided with a tooth z, having an inclined face on one side and a flat face on the other, which projects between two teeth of the addingwheel. Such wheel may therefore turn in one direction, but. is locked. against movement in the opposite direction. The tooth z is held yieldingly in position by a spring z, engaging the shorter arm of the lever.

In the present construction ten addingwheels are employed, one for each order of numbers represented by the eight shiftingkeys and two additional wheels to compute to two places of numbers beyond the column represented by the first key on the left. The figures on the rim of each wheel are repeated, one set on each half of the circumference, in order to furnish one set of figures for reading the sum and the other for printing the same on the paper, which construction requires the use of two pins i and two recesses i one diametrically opposite to the other, on each wheel.

To each adding-wheel is connected by spurgears V a printing and reading wheel V, with the type-figures O to 9, inclusive, repeated in two sets, one of which is in position to be read from the front of the machine, while the other set faces the paper and does the printing. All the wheels V are mounted on a common shaft V to turn independently of one another, and the shaft is carried by arms V V that have a perpendicular rising movement and also a rocking motion on centers V, Figs. 4 and 6. This centersupporting the arm V consists of the stud V and a square block V fitted to turn loosely on the stud and to slide in a slot V on the lower portion of the arm. Below this center of oscillation a curved link V connects the arm with a rocking lever V moving from a center V in a vertical arc and itself connected with the key-lever O by a long link or connecting-rod C The key C thus connected operates when depressed to throw the wheels V with a backward swing and an upward movement against the paper, as indicated by the dotted lines in Fig. 4, first throwing the wheels clear of the adding-wheels and then bringing them in working contact with the paperon the impression roller. The wheels V are thus caused to print the total sum of the diiferent numbers printed by the printingarm .A,and as the inking device for the wheels V is independent of the inking device for the arm A the total may, if desired, be printed in a color different from that in which A prints.

In the backward throw of the printingwheels from the center V the end of the lower arm V makes contact with the toe V on the end of the carrier-arm V and brings the whole set of printing-wheels against the paper with a suitable degree of pressure. To prevent the wheels of this set from turning out of position after they are disengaged from the add ing-wheels, a locking-bar V carried at the ends in slots V in the arms V above the wheels, locks all the wheels by engaging the teeth of the gears V at the moment when these begin to clear the adding-wheel gears V. This bar is thrown into action by springs V and is set clear of the gear by a fixed incline V when the printing-wheels are brought forward to place into gear with the addingwheels again.

The means for inking the type on the face of the printing-arm is mounted on the sliding carrier of that part. It consists of an uprightbar V, pivoted to the link a and standing alongside of the printing-arm, a horizontal arm W swinging on a pivot V and carrying an inking-roller W, and a guard-plate on the upright bar extending beyond the inking-roller and riding against the impression roller in the sliding movements of the printing-arm and the carrier-bar W. The function of this guard-plate is to keep the inkingroller from contact with the paper. A spiral spring WV on the pivot of the swinging arm W holds the inking-roller in front of the printing-arm, but allows it to yield and be thrown out of the path of the printing-awn by the contact of that part with the inkingroller in the movement of oscillation which brings the type against the paper. A coilspring W on the pivot W of the arm Y V" holds the guard W always in riding contact with the paper. The i n king device thus travels with the printing-arm and is operated by the movements of that arm to ink the type before every impression.

The separate inking device for the printing-wheels is an inl ;ingroller Y, suspended by arms y y from points if above and held against the type-rims of the wheels by a spring 1/ WVhen the printing-wheels move toward the impression-roller, the ends of the carrierarms V strike the carriers y and throw the inking-roller from in front of the printing wheels.

On the same shaft with the printingwvheels maybe placed a set of dating-wheels Z Z, as illustrated in Fig. 6, so as to imprint the day, month, and year at the same operation.

Having thus fully described my invention,

QLD

what I claim as new, and desire to secure by Letters Patent, is

1. An adding-machine having a series of adding devices one for each numerical order, a paper holding and feeding device, a printing device having a series of type -figures from O to 9 inclusive and ada' jited by its movements in one direction to make contact with the paper and imprint any one of its type-tigu res on the paper, and by its movement in the opposite direction to engage and actuate the adding devices, and means for separately shifting said printing device transversely of the paper by whichit is set to print from the hi hest order of numbers in the row, and for actuating said printing device to suecessively add and print the figures one after another.

2. The combination in an adding-machine, of a printing-bar having a single line or" type, and keys and connections controlling the lateral and vertical movement of the bar and its movements to and from a platen, substantially as specified.

3. The combination with the movable printing device of an adding-machine, of a series of order-keys and connections operating to carry the device laterally to any one desired of a series of starting-points, said startingpoint being at the order represented by the key which is operated, substantially as set forth.

a. The combination with the printing device of an adding-machine, of two series of keys and connections, one series operating to carry the printing device to any one desired of a series of starting-points, and the other operating to control the position of the figures to be printed and also the step-l)y-step return of the printing device, substantially as set forth.

5. An adding -machine provided with a printing device, and a series of keys and connections operating independently of each other to eifect the lateral adjustment of the printing device to any desired starti rig-point, substantially as set forth.

6. An adding machine provided with a printing device having a single line of type, and two independent series of keys and connections, one series operating to control the lateral adjustment of the printing device to its initial starting-point, and the other its lineal adjustment, printing action and return feed, substantially as set forth.

7. An adding machine provided with a printing device, an impression-roller, paperfeeding mechanism, and two independent series of keys and connections, one series operating to control the lateral adjustment of the printing device to its initial starting-point and simultaneously operating the paper-feeding mechanism, and the other series controlling the position of the figures on the printing device to be printed, the printing action and the return feed of the printing device, substantially as set forth.

vucl, -L uu 8. An adding machine provided with a printing device having a single line of type, a series of adding-wheels, and two independent series of keys and connections, one series operating to control the lateral adjustment of the printing device to its initial startingpoint, and the other series controlling the movement of the printing device to effect the positioning of the figure to be printed and simultaneously actuating an adding-Wheel, and also actuating the printing device to effect the printing and the step-by-step return feed of the printing device, substantially as set forth.

9. In an adding-machine, a series of adding-wheels, paper-holdingrollers stationary as to position but having rotative movements to feed the paper, a printing-arm located between said addingwheels and paper-holding rollers having on one side a series of typefigures arranged in vertical line and numerical order facing the paper-holding roller, a series of gear-teeth on the opposite side adapted to engage with and actuate the addingwheels, by the movements of said printingarm, means for-shifting said arm transversely in front of the paper to print from left to right, means for feeding back said arm toward the lowest place of numbers to space the figures, means for setting said arm in a perpendicular line at right angles to its shifting movement after engaging with the addingwheels, and means for oscillating said arm to successively engage it with, and disengage it: from the adding-wheels and to bring its typefigure into working contact with the paper.

10. In an adding-machine, an adding device and a paper-supporting device, combined with a movable printing-arm located between said devices, mechanism to actuate the print ing-arm to bring itinto engagement with the adding device and to actuate the latter, and subsequently to disengage it from the adding device and move it into contact with the paper to print thereon the number added, substantially as specified.

11. The combination of a series of addingwheels, a paper holding and feeding device, a rack having perpendicular rectilinear move ment for actuating the wheels, and located for operation between said adding-wheels and paper-holder, type-figures in single line car- 'ied by said rack and by the rectilinear movements of that part adapted to be set in position to imprint in required order upon the paper, a series of keys and mechanism for imparting perpendicular movements to said rack, whereby the required figures to be printed are successively ad ded,a second mechanism operated by the same keys by which the said rack is oscillated in one direction to engage the adding-wheels and in the opposite direction to be brought in contact with the paper to imprint the figures added.

12. The combination of adding mechanism, an impression-roller and paper-feeding mechanism, a traveling type-carrying arm, shift- IIO IZC

ing-keys and connecting mechanism controlling the position of said arm with respect to the number of places occupied by the row of figures to be added and separately operating on said arm to shift it to the extreme left of the row and a series of printing and adding keys and mechanism connecting each key individually with the type-carrying arm, by which the said arm is operated to actuate the adding mechanism and to imprint said figure on the paper. v

13. The combination of adding-wheels, a paper holding and feeding device, a fixed guide, a type-carrying arm shiftable thereon across the paper, shifting-keys and mechanism separately connecting each key with the type-carrying arm, a series of printing and adding keys, and mechanism actuated by each key to operate said arm to successively add and imprint the figure corresponding to the key depressed, and interlocking means actuated by the keys of one series to lock the individual keys of the other set which is out of action.

14. The combination of adding-wheels, an impression-roller, paper-feeding means, a rack adapted to engage the adding-wheels and having rectilinear movement to actuate the wheels, a series of type-figures on the rack in position for contact with the paper, a fixed guide, means for shifting said rack transversely to set it to the required position in the row of figures to be added and printed, means forimparting rectilinear movement to actuate the adding-wheels and for disengaging the rack from the adding-wheel and bringing its type-carrying side in contact with the paper.

15. The combination of a traveling printin g-arm located between an adding device and an impression-roller and having a toothed rack adapted to be set into engagement with any one of the adding-wheels and to actuate the same by the movement of said arm, a series of shifting-keys by which said arm is set to different places of numbers beginning with the number on the extreme left of the row, and a second series of keys and mechanism variably operated by said keys by which the rack is caused to actuate the adding-Wheels and afterward is brought in working contact with the paper on the impression-roller.

16. An adding device having aseries of adding-wheels on a common shaft, a series of printing and reading wheels corresponding in number with the adding-wheels and individually and directly geared therewith to be rotated thereby, means for disengaging all the printing and reading wheels simultaneously from the adding wheels and subsequently, while so disengaged, bringing them into contact with a paper strip to print thereon, and means to lock-said printing-wheels against rotation when disengaged from the adding-wheels, substantially as set forth.

17. The combination with a series of addingqvheels, of a printing-wheel individually connected with each adding-wheel to rotate in unison therewith and means for simultaneously detaching said printing-wheels from the adding-wheels and bringing them in printing contact with a paper strip.

18. The combination of adding-wheels, an impression-roller presenting a paper strip, a traveling printing-arm adapted by engagement with the adding-wheels to actuate the same and by contact with the impressionroller to print thereon the figures added by the adding-w heels, means for operating said arm to cause it to actuate the adding-wheels and afterward to make printing contact with the roller, individual printing-wheels corresponding in number and position with the adding-wheels and detachably connected with. the adding-wheels to rotate in unison therewith and be set thereby, means for disengaging said printing-wheels and bringing them in printing contact with the paper strip to print the sum total of the adding-wheels, means for inking the printing-arm and an inking device for the printing-wheels.

19. The combination of adding-wheels, a tubular shaft on which the same are mounted to rotate, an internal shaft carrying springbolts adapted by rotative movement of the shaft to engage internal recesses in the hubs of the adding-wheels and lock said wheels on the tubular shaft, means for turning the inner shaft, and a stop device forarresting the rotative movement of the outer shaft at a determined point to set back all the addingwheels,simultaneously to the starting-point.

20. The combination with a series of adding-wheels containing a repeated set of figures on the circumference in each wheel, a circle of gear-teeth on its circumference, stoppins on each wheel, an elbow-lever movable in a vertical are having on one end a pivoted pawl adapted to engage said stop-pins, and a tooth on the other end in position to engage the corresponding pin in the adjacent wheel, I

a rocking arm having a curved end adapted by contact with said elbow-lever to oscillate the same, a spring-impelled bolt setting in line with the teeth of the adding-wheel located with relation to one end of the elbowlever to be held back by the lever against the reactive force of its spring.

21. The combination with the traveling printing-arm having a slotted lower member, of a fixed guide A and a shaft A both extending through the slotin the printing-arm, hangers pivotallysupported on the fixed guide and carrying the shaft A a rod B connected at one end to the shaft A a finger-key, and spring-controlled means connecting said key with the rod B whereby the printing-arm is oscillated forward and back by pressure and release of the key, substantially as set forth.

22. The combination with the traveling printing-arm, of the fixed guide A on which the said arm is adapted bot-h to oscillate and to have perpendicular rectilinear movement, vibrating frame K K K a connection between the printing-arm and the frame, and means for vibrating the frame in a vertical arc consisting of the inclined bar K, rocking cam-plates L, finger-keys B and connecting means between the linger-keys and the camplate whereby graduated rectilinear movements of the printing-arm are produced by pressure upon the keys.

23. The combination with a fixed guide and a printing-arm mounted to slide and vibrate on said guide, in front of an impression-roller to make printing contact therewith,of an inking device movable laterally with the printing-arm and located between the latter and the impression -roller, said inking d evice yielding laterally when engaged by the printingarm in its movement toward the impressionroller.

24. In an adding-machine the combination with a series of adding-wheels, of an individual printing-wheel to each adding-wheel hearing type-figures composed of the ten digits, means for rotatingand setting said printingwheel in unison with the adding-wheels, and means for disengaging the whole set of printing-wheels from said adding-wheels and for bringing them simultaneouslyin printing contact with a paper strip, said printingwheels being arranged to print ciphers in all the spaces to the left of the highest figure in the line at the same operation of imprinting the sum-total on the paper.

In testimony ihat I claim the foregoing I have hereunto set my hand and seal.

ADAM I-IOCH. [L. s.] Witnesses:

MAX BLUM, EDWARD E. OSBORNE. 

